/* * Copyright (c) 1999, 2004, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.naming.spi; import java.util.Hashtable;import javax.naming.NamingException;  /**  * This interface represents a builder that creates object factories.  *<p>  * The JNDI framework allows for object implementations to  * be loaded in dynamically via <em>object factories</em>.  * For example, when looking up a printer bound in the name space,  * if the print service binds printer names to References, the printer  * Reference could be used to create a printer object, so that  * the caller of lookup can directly operate on the printer object  * after the lookup.  An ObjectFactory is responsible for creating  * objects of a specific type.  JNDI uses a default policy for using  * and loading object factories.  You can override this default policy  * by calling <tt>NamingManager.setObjectFactoryBuilder()</tt> with an ObjectFactoryBuilder,  * which contains the program-defined way of creating/loading  * object factories.  * Any <tt>ObjectFactoryBuilder</tt> implementation must implement this  * interface that for creating object factories.  *  * @author Rosanna Lee  * @author Scott Seligman  *  * @see ObjectFactory  * @see NamingManager#getObjectInstance  * @see NamingManager#setObjectFactoryBuilder  * @since 1.3  */public interface ObjectFactoryBuilder {    /**      * Creates a new object factory using the environment supplied.      *<p>      * The environment parameter is owned by the caller.      * The implementation will not modify the object or keep a reference      * to it, although it may keep a reference to a clone or copy.      *      * @param obj The possibly null object for which to create a factory.      * @param environment Environment to use when creating the factory.      *                 Can be null.      * @return A non-null new instance of an ObjectFactory.      * @exception NamingException If an object factory cannot be created.      *      */    public ObjectFactory createObjectFactory(Object obj,                                             Hashtable<?,?> environment)        throws NamingException;}